Remove shebang line from neurom/check/runner.py

A shebang line is only meaningful in a file with the executable bit set
in its permissions. This module is designed to be imported, not directly
executed: it is already correctly non-executable, and it has no “main
routine” or interesting side effects.

neurom/check/runner.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # Copyright (c) 2015, Ecole Polytechnique Federale de Lausanne, Blue Brain Project
 # All rights reserved.
 #